basic_static_string::append (4 of 9 overloads)

Append to the string.

BOOST_STATIC_STRING_CPP14_CONSTEXPR basic_static_string&
append(
    const_pointer s,
    size_type count);

Appends characters in the range (s, s + count) The appended string can contain null characters.

Type	Thrown On
`std::length_error`	if `count > max_size() - size()`

*this